Get contact changes

The following example shows you how to get contact changes (delta query). The delta query lets you query for changes to contacts without having to fetch the entire set of contacts every time.

import com.independentsoft.graph.GraphClient;
import com.independentsoft.graph.GraphException;
import com.independentsoft.graph.contacts.Contact;
import com.independentsoft.graph.contacts.ContactChanges;

public class Test {

	public static void main(String[] args) {

		try
		{
			GraphClient client = new GraphClient();

			client.setClientId("63333333-209e-454e-b7bd-55a4d201270f");
			client.setTenant("independentsoft.onmicrosoft.com");
			client.setUsername("info@independentsoft.onmicrosoft.com");
			client.setPassword("password");

			ContactChanges contactChanges = client.getContactChanges();

			for (Contact contact : contactChanges.getContacts())
			{
				System.out.println("Contact: " + contact.getDisplayName());
			}

			// Save the deltaLink for future calls
			String deltaLink = contactChanges.getDeltaLink();

			System.out.println("Delta link: " + deltaLink);

			// Later, use the deltaLink to get only the changes since the last call
			// ContactChanges newChanges = client.getContactChanges(deltaLink);
		}
		catch (GraphException e)
		{
			System.out.println(e.getCode());
			System.out.println(e.getMessage());
		}
	}
}

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JGraph > Tutorial > Get contact changes

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